新型Fe基非晶复合涂层的制备及性能研究

发布时间：2018-04-04 12:48

本文选题：激光光学　切入点：激光熔覆　出处：《中国激光》2015年11期

【摘要】：利用IPG YLS4000光纤激光器,采用激光熔覆工艺在某高强钢基体上制备了一种新型含氮Fe基非晶复合涂层。通过X射线衍射仪物相分析发现,在3种不同激光工艺下制备的涂层在非晶基体上出现了不同含量的晶化相,分别对3种工艺下制备的涂层与基体材料的硬度、耐磨及耐蚀性能进行了测试分析。结果表明,与基体材料相比,3种涂层的硬度、耐磨及耐蚀性均有明显提高,其中在1.5 k W激光功率、180 mm/min扫描速度条件下制备的涂层非晶含量最高,表现出最好的性能。研究认为合适的工艺才能制备出性能优良的涂层,涂层中非晶相含量的增加能够明显改善涂层的性能。
[Abstract]:Using IPG YLS4000 fiber laser and laser cladding technology, a novel amorphous Fe-based composite coating containing nitrogen was prepared on a high strength steel substrate.The phase analysis of X-ray diffractometer shows that the coatings prepared under three different laser processes have different contents of crystalline phases on the amorphous substrates, and the hardness of the coatings and the substrate materials prepared under the three kinds of processes are investigated respectively.Wear resistance and corrosion resistance were tested and analyzed.The results show that the hardness, wear resistance and corrosion resistance of the three coatings are obviously improved compared with the substrate materials. The amorphous content of the coatings prepared at the scanning rate of 1. 5 kW laser power of 180 mm/min is the highest, and the coating exhibits the best properties.It is considered that the coating with good properties can be prepared by proper process, and the performance of the coating can be improved obviously by increasing the content of amorphous phase in the coating.
【作者单位】：苏州大学沙钢钢铁学院;安徽工业大学材料科学与工程学院;
【基金】：国家自然科学基金(51305285,51204115,51401139) 江苏省自然科学基金青年基金(BK20130304,BK20130315,BK20140334)
【分类号】：TG174.4

【参考文献】